Stop motion



K. A4 WOLFE Feb. 28, 1939.

STOP MOTION Filed Aug. 17, 1937 2 Sheets-Sheet l INVENTOR Kanseg AWolfe K. A. WOLFE Feb. 28, 1939.

5 TOP MOT ION Filed Aug. 17, 1957 '2 Sheets-Sheet 2 J2 E 3 Q1 INVENTOR Kinsea A. Wolfe W A o Patented F n-2s, 1939 UNITED STATES PATENT OFFICE Celanese Corporation of America,

tion of Delaware.

a corpora- Application August ,17, 1937, Serial No. 159,50!

6 Claims.

This invention relates to textile machinery, and in particular to winding mechanisms for winding cheeses and like packages in which a thread or a number of threads are taken from a package or a number of packages and are wound into a cheese.

It is an object of this invention to provide an improved stop motion that is operable upon the breakage of a thread to stop the winding of the thread onto the thread package.

Another object 01' this invention is the provision of means for stopping the winding of the thread when the thread package has reached a predetermined size or diameter.

,snu another object of this invention is the provision of an improved cheesing tree.

Other objects of this invention, together with certain details of construction and combinations of parts, will appear from the following detailed description and the appended claims.

In one aspect this invention comprises the provision of a multiple end cheesing tree designed to support a predetermined number of supply packages. The number of packages which may be supported by and regularly spaced on the cheesing tree is governed by the fixed height of and the distance between the centers of the winding machines take up spindle driving assemblies. The cheesing tree comprises in general a revolving stand having two decks upon which the packages of thread or yarn are supported, the upper deck being smaller and therefore adapted to support a lesser number of packages than the lower or larger deck. The cheesing tree of the instant invention is designed to furnish from two to twenty-four ends.

In order to maintain and insure a full complement of ends at all times, the cheesing tree is provided with a stop motion device cooperating ping the operation of the take-up device in the event that an end breaks or the yarn on the supply package fails.

In another aspect the invention relates to the with means on the take-up mechanism for stopway of example only and is in no way limitative.

In the drawings:

Figure 1 is a view showing a unit assembly comprising the cheesing tree and the take-up winding mechanism,

Figure 2 is a view taken on line 2-2 in Figure 1, a portion of the upper deck of the cheesing tree being broken away,

Figure 3 is a cross-sectional view of the turret head,

Figure 4 is a detail view, on an enlarged scale, of the take-up winding mechanism showing the electro-magnet operated stopping lever and wheel arrangement and the switch for causing the winding operation to stop when the cheese or 15 cone being wound has reached a predetermined diameter,

Figure 5 is a detail view of the electro-magnet arrangement showing the spring bar switch and means for operating the same, and

Figure 6 is a wiring diagram for the operation of the electro-magnet.

Like reference numerals indicate like parts throughout the several views of the drawings.

Referring to Figures 1, 2 and 3 of the drawings, the cheesing tree, generally indicated by reference numeral 1, comprises a lower deck 8 and upper deck of smaller diameter 9 which are suitably supported on a tube ll held in at base plate l2 of any suitable material, which plate may be 30 fastened to the floor. The lower and upper decks of the cheesing tree are provided with supply package spacing and supporting pins l3. In the modification shown in the drawings, the lower deck is provided with fifteen spacing and sup- 85 porting pins arranged in staggered relationship and the upper deck is provided with nine pins equally spaced in a circle. Thus, each supply package [4' on the multiple cheesing tree is provided with an individual support so that there will 40 be no interference between the yarns taken from supply packages.

Along the periphery of the upper deck 9, and preferably at regular intervals, are fixed yarn guides I 5. At a point above the upper deck 9, 46

suitably fixed to tube II, are additional yarn guides ll. Yarn guides-l5 and ii are arranged to permit of a substantially direct overhead yarn take-oft from each supply package. The turret head, generally indicated by reference numeral I8, also carries two sets of yarn guides l9 and 2i which are screwed into the turret head at regular intervals around the same and are held therein by means of locknuts 22. Yarn guides l9 and 2|, together with yarn guide 23 supported from a ll ported on a table or bench 3|.

The turret head l8 mounted at the top of the cheesing tree and fastened to the tube H by means of a set screw 32 is a multiple single throw switching or circuit controlling device and comprises primarily a circular fibre case or insulating shell 33 which contains the terminals of a portion of an electrical circuit. The: terminals are two separated annular rings. The outer ring 34, preferably formed of bronze wire, supports the middle section of a series of radially spaced, unbalanced knee-shaped drop wires 35, each having a pigtail end 35, which are free to move independently in a vertical arc. The drop wires 35, corresponding to the blade of a single pole, single throw switch are heavier at the external pigtail end, and, when unsupported or not raised by yarn 31 from supply packages l4, permit the knee-like opposite end 38 to make contact with and press against the outer wall surface of the inner terminal ring 39 which is preferably made of copper and is insulated from the outer terminal ring 34 by means of suitable insulating material 4|. The terminal rings '34 and 39 are separately connected to concentric fiat copper rings 42 and 43, respectively, which in turn are connected to lead wires 44 and 45, respectively, through the medium of binding posts 45 held in a fibre disc 41' The lead wires 44 and 45 have a covering 41 pass through an insulating tube 48 which extends through the turret head and down through tube H, the wires coming out at the base l2 as shown in Figure 1. Set screw 49 is adapted to hold insulating tube 48 in position within tube H.

The binding posts are each provided with a spring pressed terminal shoe 5|. The purpose of the concentric fiat rings 42 and 43 and terminal shoes 5! is to provide movable current conductors in order that the cheesing tree may be revolved about its axis without twisting the wires 44 and 45 which extend through the tube and are connected to the binding posts 45,, as noted above. A fibre cap 52 completes the enclosure of the fibre case 33 and conceals the wire ends and binding posts.

The individual single pole switches formed by the drop wires 35 are, therefore, current controlling links in an electrical circuit and are motivated by the continuity of the yarn which passes through the pigtail end or ends 35 of the drop wires. Thus, so long as the yarn is being taken up on to the package or cheese 53 and is accordingly under tension, the drop wire is in the raised position shown in Figure 3 of the drawings and the knee-like portion 38 of the drop wire has moved away from the inner terminal ring 39 thus breaking contact therewith. As long as the drop wires are out of contact with the inner terminal ring 39, the draw-oil from the supply packages l4 and the rewinding on to the cheese 53 will continue with the machine running. However, in the event that an end breaks or slackens unduly, the drop wire will fall or rotate about terminal ring 34, the portion 38 of the drop wire will contact terminal ring 39 thus completing an electrical circuit which causes electro-magnet 54 to become energized; The energized electro-magnet attracts iron plate or armature 55 which is attached to breakage lever age lever to'fnove downward in an arc to raise stopping lever 51 into contact with the continuously rotating stopping wheel 58. The progressive stages of stopping the winding from this point are similar in every respect to those effected in a standard winding machine, i. e. such as the machine manufactured by the Universal Winding Company. The winding spindle 59 of the winding machine will remain at a stand-still until continuity of yarn is reestablished and the operation of the machine manually started.

As shown in Figure 3 of the drawings the drop wires 35 are held out of contact with terminal ring 39 by the yarn 31. However, it is often desired to wind a number of ends which is less than .the maximum capacity of the cheesing tree. To

this end steel drop wire lifters 5!, which are pivoted at 52 on the turret head, are provided. The drop wire lifter is provided with a hook 53 adapted to rest on yarn guide l9 when its complementary drop wire is in use. When the drop wire is not in use, the lifter is raised and hooked on to yarn guide 2|, the drop wire being held in raised, or inoperative position, in bend 54 of the lifter 5!. In this manner the switch assembly is suitable for use under a wide range of conditions of service. With the drop wire lifters, the drop wires may be individually or collectively held out of contact with the terminal ring 39,

thereby permitting any number of ends to be successfully carried through the stop motion assembly.

The device of this invention is also provided with a sizing gauge for automatically stripping the winding of the package when it has reached a predetermined size. This sizing gauge, generally indicated by reference numeral '55, is a small, single circuit make and break" contractor comprising two copper terminal plates. One terminal plate 55, having a binding post 61, is mounted on the balanced traverse frame casting 58. The companion terminal plate 59, having a binding post H, is mounted on a fibre insulating base 12, which base is attached to an adjustable holding member 13. This portion of the switch member is movable along and is adapted to be held in adjusted position on the breakage lever supporting casting 14, the position depending on the size of the yarn package desired, by means of set screw 15. A button head contact pin 15 connected to binding post ll extends through terminal plate 59 and fibre insulator l2. Between the head of the contact pin and the terminal plate, there is inserted a compression spring 11 which provides a cushioning effect when touched by the terminal plate 55 which is progressively advanced toward contact pin 15 by traverse frame 58 as the latter is moved clockwise and outward as the yarn package is built up on the spindle. Thus, when the yarn package has reached a predetermined size, the travelling terminal plate 55 contacts the head of pin 15 closing a normally open circuit, resulting in the energization of the electro-magnet 54 which, through the operations outlined above, causes the winding operation to stop.

Mounted on the electro-magnet 54 is a twopoint parallel spring bar switch 18. The purpose of this switch is to serve as an automatic circuit breaker or secondary switch to interrupt the fiow of current into the electro-magnet at any time when the machine is inactive and the spindle is 75 at rest. This secondary switch is adapted to interrupt the circuits of the drop wire switches on the cheesing tree and of the sizing gauge switch. The spring bar switch is adapted to be closed by means of a screw 19 (see Figure It is to be understood that the foregoing detailed description is merely given by way of illustration and that many variations may be made therein without departing from the spirit of my invention.

Having described my invention, what I desire to secure by Letters Patent is:

1. In a device ofa character described, the combination with a take-up mechanism and means including an electrically operated member for cooperating with said take-up mechanism for stopping the operation thereof, of means for holding a supply of thread to be wound into a package by said take-up mechanism, said means comprising a tube, means mounted on said tube for supporting a plurality of thread packages, a head on said tube, said head having a plurality of concentric rings adapted to be electrically energized, and drop wires supported on one of said rings, said drop wires being adapted, upon'failure or undue slackening of the thread, to come in con tact with the other of said rings to close an electrical circuit so as to cause said electrically operated member to arrest the motion of said take-up mechanism.

2. In a device of a character described, the combination with a take-up mechanism, and means including a lever operated by a solenoid cooperating with said take-up mechanism for stopping the operation thereof, of means for holding a supply of thread to be wound into a package by said take-up mechanism, said means comprising a tube, means mounted on said tube for supporting a plurality of thread packages, a head on said tube, said head having a plurality of concentric rings adapted to be electrically energized,

. and drop wires supported on one of said rings,

combination with a take-up mechanism and means including a lever operated by a solenoid cooperating with said take-up mechanism for stopping. the operation thereof, of means for holding a supply of thread to be wound into a package by said take-up mechanism, said means comprising a tube, means mounted on said tube for supporting a plurality of thread packages. a head on said tube, said head having a plurality of concentric rings adapted to be electrically energized, drop wires supported on one of said rings, said drop wires being adapted, upon failure or undue slackening of the thread, to come in contact with the other of said rings to close an electrical circuit to energize said solenoid whereby said lever operates to arrest the motion of said take-up mechanism, and means in the same electrical circuit for causing said lever to be operated to arrest the motion of the take-up mechanism when the take-up package has reached a predetermined size.

4. In a device of a character described, the combination with a take-up mechanism and means including a lever operated by a solenoid cooperating with said take-up mechanism for stopping the operation thereof, of means for holding a supply of thread to be wound into a package by said take-up mechanism, said means comprising a tube, means mounted on said tube for supporting a plurality of thread packages, a head on said tube, said head having a plurality of concentric rings adapted to be electrically energized, drop wires supported on one of said rings, said drop wires being adapted, upon failure or undue slackening of the thread, to come in contact with the other of said rings to close an electrical circuit to energize said solenoid whereby said lever operates to arrest the motion of said take-up mechanism, and means for holding said drop wires in inoperative position.

5. A cheesing tree comprising a base, a tube mounted on said base, a plurality of discs carried by said tube, said disc being adapted to support a plurality of thread packages thereon in spaced relation, a head carried on said tube, said head having a plurality of concentric rings adapted to be electrically energized, and drop wires supported on one of said rings, said drop wires being adapted when coming in contact with the other of said concentric rings to arrest the motion of a take-up mechanism when operatively connected thereto.

- 6. A cheesing tree comprising a base, a tube mounted on said base, a plurality of discs carried by said tube, said disc being adapted to support a plurality of thread packages thereon in spaced relation, a head carried on said tube, said head having a plurality of concentric rings adapted to be electrically energized, drop wires supported on one of said rings, said drop wires being adapted when coming in contact with the other of said concentric rings to arrest the motion of the takeup mechanism when operatively connected thereto, and means for holding the drop wires in inoperative position.

1 KINSEY A. WOLFE. 

